Comparison

i vs Interval Timer

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

i

This interval timer app allows for customizable repeat and interval settings. It includes features to measure elapsed time after stopping, mute functionality, and a skip option to advance timers.

Highlights
  • Repeat timer function
  • Interval time settings
  • Elapsed time measurement
  • Mute function
  • Skip timer function
Features
Read full description

This is a timer application that can be repeated settings and interval settings. ** The following features are distinctive. ・ Repeat function of timer ・ Setting function of interval time ・ Measure function of time elapsed since the timer is stopped ・ Mute function ・ Skip function of timer. (It can be used when you want to move to the next timer.) ** Supplement ・ I use part of the image made by Katerina Knizakova for the icon. ・ The image of the App Store uses a part of image made by Mikegi .

About

Interval Timer

This app provides a customizable interval timer for various training routines, including HIIT and Tabata. Easily set up custom workouts, track your progress, and stay motivated with visual cues and audio notifications. It's suitable for a wide range of activities from fitness to productivity.

Highlights
  • Customizable workout setup
  • Progress tracking with calendar
  • Saveable custom presets
  • Color-coded notifications
  • Listen to music/audiobooks
  • Large, full-screen display
  • Widget for easy access
Features
Read full description

Interval Timer: Tabata and HIIT is a customizable timer for sports. Use it for High-intensity interval training and workout. It's a free sports interval timer app that makes it easy to create your custom training routine. Use it as your timer for training or exercise. This sports timer is great for crossfit, fitness and running. The sports timer will also be useful for various activities such as crossfit, jogging, boxing,circuit training,breathing exercises and yoga. You can use this circuit timer as a productivity timer to focus on your work tasks. Key features: Setup workout Tracking your progress Customizable presets Notifications & colors Motivation Listening music or books Huge digits Widget SETUP WORKOUT Set up, edit and save your own workouts with the customizable feature. Add as many intervals as you like. You can add a 10 second rest period and a 20 second work period, as well as a 5 second interval between exercises. TRACKING PROGRESS Track your workouts with a Calendar. Plan and track events, and get notified when you have a training scheduled. With this feature, you will not miss a single workout and will keep track of your progress. CUSTOMIZABLE PRESETS Save your workouts in the presets section. It's also possible to create your own custom intervals. You can add an unlimited number of presets. NOTIFICATIONS & COLORS Each training phase is easy to distinguish by a different color and is initiated by an individually adjustable signal (sound, vibration, voice) MOTIVATION Each completed exercise motivates you to achieve higher goals. Enjoy your training and achieve your fitness goals with the interval timer. LISTENING MUSIC Listen to motivational audiobooks or your favorite music and get inspired and energized. Full screen color coded display is easy to read from a distance. Widget helps you train without being distracted by the constant unlocking of your phone. Interval Timer: Tabata and HIIT is an easy to use sports workout timer for your daily fitness training at home, at the gym or everywhere else.

Screenshots

i4 screens
Interval Timer4 screens

Verdict

The call

i and Interval Timer both sit at 5.0 stars, but that hides the real split: 97% of Interval Timer's written reviews are positive against 43% of i's. Interval Timer also leads on ratings volume (379 vs 1) and device support (4 vs 2). i's advantage is update cadence (every 9 days vs monthly) and iOS requirement (13.6 vs 15.0). On price, rating, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. i sells 1 one-off in-app purchase and Interval Timer sells 12 in-app purchases, starting at $2.09 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for i against 4.9 for Interval Timer. That said, the two scores are not equally well evidenced: Interval Timer has 379 ratings behind it against 1, so its average is the more settled of the two. Written reviews are what separate them: 43% of i's written reviews are positive against 97% of Interval Timer's.

UpkeepUpdate frequency

i ships an update every 9 days, Interval Timer monthly. The most recent releases landed on August 20, 2026 and September 25, 2026 respectively.

Scorecard5 real differences · 5 level
i versus Interval Timer: the parameters behind the verdict, then further details
ParameteriInterval Timer
PriceFreeFree
Rating5.0 (1 ratings) — better4.9 (379 ratings)
Positive reviews42.9% of reviews96.5% of reviews — better
Number of ratings1379 — better
Update frequencyEvery 9 days — betterMonthly
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad, iPod, Apple Watch — better
Requires iOS13.6 — better15.0
Further details — not scored
Size8 MB113 MB
Age rating4+4+
DeveloperFoodmenu.world Inc.SimpleInnovation LLC

Customer experience

i

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews7 reviews
Positive42.9%
Neutral14.3%
Negative42.9%

Interval Timer

All ratings379 ratings
Positive99.5%
Neutral0.3%
Negative0.3%
Written reviews317 reviews
Positive96.5%
Neutral0.9%
Negative2.5%

Bugs and requests

i

Not enough reviews yet to summarise bugs or requests.

Interval Timer

Reported bugs

2 issues
  • Occasional app crashes
  • Compatibility issues with older devices

Requested features

3 requests
  • More pre-designed workout routines
  • Ability to name and customize exercises
  • Option to adjust countdown time between intervals

In-app purchases

1 purchases

i

One-time1
  • full_version$0.99
12 purchases

Interval Timer

Subscriptions8
  • Timer PRO for 1 month: 30% OFF7 Days trial$2.091 Month
  • Timer PRO for 1 month: 25% OFF7 Days trial$2.291 Month
  • Interval Timer PRO for 1 month$2.991 Month
Show 5 more
  • Interval Timer PRO for 1 month7 Days trial$2.991 Month
  • Interval Timer PRO - 30% OFF7 Days trial$15.001 Year
  • Interval Timer PRO - 25% OFF7 Days trial$16.491 Year
  • Interval Timer PRO for 1 year$21.991 Year
  • Tabata Timer PRO for 1 year7 Days trial$21.991 Year
One-time4
  • Interval Timer - no Ads$2.99
  • HIIT Timer PRO Forever 30% OFF$27.99
  • HIIT Timer PRO Forever 25% OFF$29.99
Show 1 more
  • Exercise Timer PRO Forever$39.99

Questions

Is i free?
i is free to download, with in-app purchases available.
Is Interval Timer free?
Interval Timer is free to download, with in-app purchases available.
Which has better reviews, i or Interval Timer?
i is rated higher. i averages 5.0 out of 5 from 1 ratings, while Interval Timer averages 4.9 from 379 ratings.
Do i or Interval Timer have ads?
Both i and Interval Timer show ads.
Which is updated more often, i or Interval Timer?
i ships an update every 9 days, and Interval Timer monthly. Most recently, i was updated on August 20, 2026 and Interval Timer on September 25, 2026.

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